alt.energy.homepower

> the rather inconvenient temperature that liquid
> hydrogen requires, it's propensity to leak through near everything,
> the way it changes materials, it's cost, flammability or explosive
> nature.


As the reference indicated, I'm talking about gasous Hydrogen. They
sell the cylinders in the Yellow Pages, it can't be rocket science.
Liquid H2 is rocket science.

I can't find any recent H2-inside-cylinder caused fires or explosions
in googling. Can you name one?

We live in houses which have natural gas piped into them; we live in
houses which keep large tanks of propane beside them; we drive
vehicles carrying double-digit gallons of liquid gasoline. Is
hydrogen a higher risk?